# measuring points of engagement - Research conducted for [[Walt Disney]] showed that someone was likely to drop their trash after about 30 feet, which is why you're always within 30 feet of a trash can at [[Walt Disney World]].[^1] - The team developing Witcher 3 (CD Projekt) used a metric called the [[27 Seconds Rule]], where there needed to be some point of engagement or encounter for the user every 27 seconds in the open world game.[^2] --- - **Keywords:** - [[27 Seconds Rule]] - [[Attention span]] - [[Engagement]] - **Related:** - **Reference:** - [The Art of Disney's Trash Cans](https://www.wdwinfo.com/disney-merchandise/the-art-of-disneys-trash-cans/) - [PAX West 2017 panel - 10th Anniversary of The Witcher](https://youtu.be/Rs6MtsACDx8?t=4139) [^1]: [The Art of Disney's Trash Cans](https://www.wdwinfo.com/disney-merchandise/the-art-of-disneys-trash-cans/) [^2]: [PAX West 2017 panel - 10th Anniversary of The Witcher](https://youtu.be/Rs6MtsACDx8?t=4139)